18090720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{739}}^1$

素因数の和:777

約数の個数: 144

約数和(自身を含む): 65454480

約数和(自身を除く): 47363760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 32, 34, 36, 40, 45, 48, 51, 60, 68, 72, 80, 85, 90, 96, 102, 120, 136, 144, 153, 160, 170, 180, 204, 240, 255, 272, 288, 306, 340, 360, 408, 480, 510, 544, 612, 680, 720, 739, 765, 816, 1020, 1224, 1360, 1440, 1478, 1530, 1632, 2040, 2217, 2448, 2720, 2956, 3060, 3695, 4080, 4434, 4896, 5912, 6120, 6651, 7390, 8160, 8868, 11085, 11824, 12240, 12563, 13302, 14780, 17736, 22170, 23648, 24480, 25126, 26604, 29560, 33255, 35472, 37689, 44340, 50252, 53208, 59120, 62815, 66510, 70944, 75378, 88680, 100504, 106416, 113067, 118240, 125630, 133020, 150756, 177360, 188445, 201008, 212832, 226134, 251260, 266040, 301512, 354720, 376890, 402016, 452268, 502520, 532080, 565335, 603024, 753780, 904536, 1005040, 1064160, 1130670, 1206048, 1507560, 1809072, 2010080, 2261340, 3015120, 3618144, 4522680, 6030240, 9045360, 18090720]

約数ペア:

[(1, 18090720), (2, 9045360), (3, 6030240), (4, 4522680), (5, 3618144), (6, 3015120), (8, 2261340), (9, 2010080), (10, 1809072), (12, 1507560), (15, 1206048), (16, 1130670), (17, 1064160), (18, 1005040), (20, 904536), (24, 753780), (30, 603024), (32, 565335), (34, 532080), (36, 502520), (40, 452268), (45, 402016), (48, 376890), (51, 354720), (60, 301512), (68, 266040), (72, 251260), (80, 226134), (85, 212832), (90, 201008), (96, 188445), (102, 177360), (120, 150756), (136, 133020), (144, 125630), (153, 118240), (160, 113067), (170, 106416), (180, 100504), (204, 88680), (240, 75378), (255, 70944), (272, 66510), (288, 62815), (306, 59120), (340, 53208), (360, 50252), (408, 44340), (480, 37689), (510, 35472), (544, 33255), (612, 29560), (680, 26604), (720, 25126), (739, 24480), (765, 23648), (816, 22170), (1020, 17736), (1224, 14780), (1360, 13302), (1440, 12563), (1478, 12240), (1530, 11824), (1632, 11085), (2040, 8868), (2217, 8160), (2448, 7390), (2720, 6651), (2956, 6120), (3060, 5912), (3695, 4896), (4080, 4434)]